Core/Player: Added helpers to check quest objective status

Port From (https://github.com/TrinityCore/TrinityCore/commit/9dd8647125a020ca2dccdf26d6839f4665ff9870)

Source/Game/Entities/Player/Player.Quest.cs

@@ -2237,6 +2237,19 @@ namespace Game.Entities
             return GetQuestSlotObjectiveFlag(slot, objective.StorageIndex) ? 1 : 0;
         }
 
+        int GetQuestSlotObjectiveData(uint questId, uint objectiveId)
+        {
+            ushort slot = FindQuestSlot(questId);
+            if (slot >= SharedConst.MaxQuestLogSize)
+                return 0;
+
+            QuestObjective obj = Global.ObjectMgr.GetQuestObjective(objectiveId);
+            if (obj == null)
+                return 0;
+
+            return GetQuestSlotObjectiveData(slot, obj);
+        }
+
         public void SetQuestSlot(ushort slot, uint quest_id)
         {
             var questLogField = m_values.ModifyValue(m_playerData).ModifyValue(m_playerData.QuestLog, slot);
@@ -2811,6 +2824,23 @@ namespace Game.Entities
             return true;
         }
 
+        bool IsQuestObjectiveComplete(uint questId, uint objectiveId)
+        {
+            Quest quest = Global.ObjectMgr.GetQuestTemplate(questId);
+            if (quest == null)
+                return false;
+
+            ushort slot = FindQuestSlot(questId);
+            if (slot >= SharedConst.MaxQuestLogSize)
+                return false;
+
+            QuestObjective obj = Global.ObjectMgr.GetQuestObjective(objectiveId);
+            if (obj == null)
+                return false;
+
+            return IsQuestObjectiveComplete(slot, quest, obj);
+        }
+
         public bool IsQuestObjectiveProgressBarComplete(ushort slot, Quest quest)
         {
             float progress = 0.0f;